Planned orders Availability check from future production orders

I have done config for availability check in planned orders. I am considering all production orders whose config is done in OVZ9. There are two planned orders for product A and two future date production orders (product A1) for the components confirmation proposal. But during ATP run for components, qty confirmed for both planned orders are same. I want, if first planned order confirms the total qty from both production orders then second planned order should not confirm anything. Pls help. For your reference, screenshots are attached below.